摘要
分析了基于ADSP2126X系列DSP芯片的两种异步串行通信实现方式,一种是利用DSP的两个FLAG引脚作为异步收发数据线,用软件模拟实现ADSP21262与外界的全双工通信X另一种是利用DSP两个SPORT口作为串行通信的管道,配合硬件中断实现与外界的异步通信。最后给出了模拟异步通信方式在网络数字音频处理器中的应用。
This article mainly puts forward two methods of serial communication based on the series of ADSP2126X. The first method is to use two FLAGs of ADSP21262 as the receiving and transmitting ports and presents the software to implentment a full-duplex ,asynchronous communication with peripherals.The other way is based on DMA and use the synchronous serial ports （SPORTS） cooperating with hardware interrupt to transfer data.
出处
《电测与仪表》
北大核心
2006年第9期50-54,共5页
Electrical Measurement & Instrumentation
